What Does It Mean to Multiply 2-digit Numbers?
Multiplication is like repeated addition, but faster!
When we multiply two 2-digit numbers (like 23 × 45), we're breaking the problem into smaller, easier parts that we can solve step by step. It's like solving a puzzle where each piece helps us find the final answer!
The Step-by-Step Method
1️⃣ Break it down: Split one number into tens and ones (e.g., 34 = 30 + 4)
2️⃣ Multiply each part: Multiply the other number by both the tens and ones separately
3️⃣ Add them together: Combine the two results to get your final answer
Let's Practice Together!
Example 1: 24 × 13
Click to see the step-by-step solution!
1. Break 13 into 10 and 3
2. Multiply 24 × 10 = 240
3. Multiply 24 × 3 = 72
4. Add them together: 240 + 72 = 312
🎉 So, 24 × 13 = 312!
Example 2: 37 × 25
Try solving this one yourself first!
1. Break 25 into 20 and 5
2. Multiply 37 × 20 = 740
3. Multiply 37 × 5 = 185
4. Add them together: 740 + 185 = 925
🌟 Great job! 37 × 25 = 925!
Parent Tips 🌟
- Real-world practice: Have your child calculate totals when shopping (e.g., 12 apples at $0.45 each)
- Use graph paper: The grids help keep numbers neatly aligned during calculations
- Make it a game: Challenge each other with 2-digit multiplication problems and time who solves them faster